Towson caldwell



(No Model.)

T. CALDWELL. HAIR PIN.

No. 516,745. Patented Mar. 6, 1894.

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UNITED STATES] PATENT FFICE.

TOW'SON CALDWELL, OF WASHINGTON, DISTRICT OF COLUMBIA.

HAIR-PIN.

SPECIFICATION forming part of Letters Patent No. 515,745, dated March.6, 1894.

Application filed September 20, 1893. SerialNo. 486,945. (No model.)

To aZZ whom it may concern.-

Be it known that I, Towson CALDWELL, a citizen of the United States,residing at ashington, in the District; of Columbia, have inventedcertain new and useful Improvements in Hair-Pins; and I do herebydeclare thefollowing to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to certain new and useful improvements in hairpins, and it has for its object to so construct the same that whenplaced in the hair the expansion of the latter shall serve to lock thepin against longitudinal movement and thus secure it in its effectiveposition. With this end in view my invention consists of a hair pin,comprising an open arrow-shaped head, the walls of which are contractedto produce a narrow throat, and the limbs extended in diverging linesfrom the open throat and crimped or corrugated near the center, so thata quantity of hair may be embraced by the diverging limbs and graduallycompressed and directed through the open throat and into the head, whereit is free to expand, as will be hereinafter more fully explained.

In order that those skilled in the art to which my invention appertainsmay fully understand the same I will proceed to describe in detail theconstruction and use of my improved pin, referring by letters to theaccompanying drawings in which- Figure 1 is a plan view of a hair pinembodying my invention; and Fig. 2 is a similar view showing the mannerin which the hair is centered and guided within the open head of the pinto lock the latter in place.

Similar letters denote like parts in both figures of the drawings.

The pin is composed preferably of the ordinary wire employed for sucharticles, and

is bent at its center to form an open head resembling in form anarrow-head. The wire constituting the walls of the open head is thencontracted at the neck to form a comparatively narrow throat B, and thenextended to form the two limbs (J, O. The limbs O, O diverge slightlyfrom the head downward, and at or near the center are crimped orcorrugated, as seen at D, and then continued in straight lines to theirends.

From the construction shown and described, it will be seen that when thepin is introduced into the hair, the limbs C C will at their extremeends embrace a considerable portion of the hair and that the latter or aportion thereof will be compressed and centered or guided to and throughthe throatB and into the open head A Where it will naturally expand asillustrated at Fig. 2, and thus serve to hold the pin in position andprevent its falling out. The contracted or corrugated portions 1), D,not only serve to compress and guide the hair to the open head A, but asclearly shown at Fig. 2 a portion of the hair embraced by the limbs islying within the crimps in the pin, and the hair surrounding or outsidethe limbs will naturally seat itself against the outside surface of thecurves or crimps at D, and thus serve to prevent the accidentalspreading of said limbs and constituting an auxiliary locking device.

I do not of course wish to limit myself to the single corrugations shownat D, for it will be understood that a series of corrugations or crimpsmay be employed with equally advantageous results.

What I claim as new, and desire to secure by Letters Patent, is

A hair pin comprising an open arrow shaped head A, the walls of whichare contracted to form an open narrow throat B, and limbs O and Cdiverging from the lower walls of the open head and crimped at D,substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

TOWSON CALDWELL. [L. s]

Witnesses:

W. H. WARDSON, R. MACK, Both of Wynya-rd BZdg., Sydney.

